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Engineers at MIT and Penn State University have found that under the right conditions, ordinary clear water droplets on a transparent surface can produce brilliant colors, without the addition of inks or dyes. [...] The researchers have developed a model that predicts the color a droplet will produce, given specific structural and optical conditions. The model could be used as a design guide to produce, for example, droplet-based litmus tests, or color-changing powders and inks in makeup products.
https://news.mit.edu/2019/water-droplets-structural-color-0227
Colouration by total internal reflection and interference at microscale concave interfaces$ (DOI: 10.1038/s41586-019-0946-4)
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Engineers Make Water Droplets Produce Iridescent Colors
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Grelb's Reminder:
Eighty percent of all people consider themselves to be above
average drivers.
(Score: 1, Funny) by Anonymous Coward on Friday March 01 2019, @11:15PM (1 child)
I'll need to look into this later, but we didn't just (re)discover what a rainbow is, did we?
(Score: 2) by c0lo on Saturday March 02 2019, @11:43AM
No, this time just another way of making rainbows. Of course, further research funding are needed.
https://www.youtube.com/watch?v=aoFiw2jMy-0 https://soylentnews.org/~MichaelDavidCrawford